On Dec 23, 1:11 pm, David Bernier <david...@videotron.ca> wrote:> I was looking for more about this, which I had read about> in French.>> non-Press discussion:>> "In about 1% of the cases, the calculations lead to collisions between> planets or between a planet and the Sun in less than 5 billion years.">> They have three future orbits about 3.5 billion years in the> future.>> "7 million hours of CPU time required" ...>> Usually, Mercury's orbit's eccentricity becomes large enough> for crossing with Venus orbit (projected to a reference plane).>> Sometimes, Mars & earth projected or Venus & earth projected> orbits intersect also ...>> Non-press discussion, detailed summary:>> http://www.obspm.fr/actual/nouvelle/jun09/colli.en.shtml>> David Bernier